All language subtitles for CONSTRAINTS_02

So guys, we're seeing back with another video of Katia V5 software.

And in this video, I'm going to show you how to apply the constraints and make a perfect

assembly out of it.

I will discuss all the constraints.

Well, usually the most that I'm going to use are the first five of them.

And I never use quick constraint because those come into the category of soft constraints,

which are temporary and not permanent.

I will also teach you some other features that you can use in instead of quick constraints.

And flexible constraint is almost equal to snap or quick constraint that is available

right here.

So let's get started.

I'm just going to continue from the previous video in which I made two parts inside the

assembly.

So if you haven't watched that video, please go and check that video first.

And then you can continue with this particular video.

So right now I'm going to show you that how can we apply the constraints?

So for example, if I want that final assembly should be that this particular part should

be aligned with this circle because the parameter of these two were made with respect to that

this whole part two can go inside part one.

It should be perfectly aligned with each other so that we can snap this particular surface

on the top of part one as well.

In order to do that, we need to specify one fixed constraint.

That means that we need to specify one part which is going to be fixed and with respect

to that part, the other part will move.

So let's say in this case I want the first part to be fixed.

So what will I do is I go to fix, fix component, I click on the component and I click on the

part itself.

Make sure you have highlighted the product because if you haven't highlighted the product,

it might be possible that your assembly between two parts won't take place.

So always highlight the main parent and then start with your assembly.

So I applied the main fixed constraint.

So I went here, click down fix component and then I chose the part that I wanted to apply

the fixed constraint on.

So now I want to align these two parts.

So this circle and this particular handle of part two, I want them to be coincide.

So I can go to coincide.

You can see it shows that one small rod and one cylindrical surface are coinciding with

each other.

So I click on it.

So you see automatically whenever you're going to hover your cursor over the parts, it

will show you like which place is can you coincide.

So we want the central axis of this circle or even this circle, both are the same.

But it can be different according to the formation of the part.

So in this case, we want to choose this surface.

We click one left click and similarly we click on the inner side of the hole as well.

I click on it as well.

Now you can say that we have made a constraint which is coincident.

But you can see this particular arrow, it means that we need to refresh or update that

particular feature.

Because whenever you see some black constraints, it means that they need an operation.

So in order to do a patient, you have to click update option, update all or control

plus you.

You can do that too, but I would recommend if you can use this.

So sometimes it's hard to find where update option might be.

Sometimes it is hidden right here at the bottom panel.

So all you need to do is like drag some features out and you will probably find the update

all feature.

If it's not there, then you can simply right click and make sure that update is clicked

okay and then it probably will appear.

So I will click on update and the thing it will do is it will directly coincide both the

parts with respect to each other.

I click up there.

So you can see that it coincided the part, but we definitely don't want our part to be

coincided or assembly to look something like this right now as it is up to the screen.

We want both the parts should be aligned properly, but the surface should be snapping to each

other or should be in contact with each other perfectly instead of emerging within each

other.

So as I told you in last video that we can use the compass to move the parts within an

assembly.

So I drag the compass, I hold the left key, when I click on the compass and I drag it

wherever I want to and I plot it, I just put it on any part.

So when it appears to be green, it has selected one of the parts.

So right now part two is highlighted so it has selected part two so I can move part two.

So I'm going to drag it slightly upwards and that is good.

So my next step is going to be that I want to make a contact surface constrained between

these two surfaces, the top surface of part one and the surface of part two as well.

So we can do two things with respect to that.

So what I generally prefer is to use offset constraint.

So how offset constraint works is when you click on offset, you can basically give any

dimension.

So if I want to have dimension between this surface and the top surface, it allows me to choose

like right now it's at 87.398 millimeter away from each other.

So let's say I want to keep it 50 millimeter, I click enter and I click on update.

So now the distance between these two is going to be 50 millimeters.

If you want to verify, we can always go to measure between and we can simply click on

both the surfaces and you can see it is 50 millimeters.

So similarly what we can do is in order to make sure that we can adjust the space between

both the parts if we are trying to make an assembly, I would recommend to use offset

constraints.

I will also tell how is offset different from contact constraint.

So in this case you can also change the value to zero if you want to, if you want to go

inside both the parts just like that.

So there is no distance at all between both the parts.

Even if you zoom in, you can see that both of the parts are perfectly aligned on top of

each other.

But also the benefit of this is you can always up change the dimension and update and it

will change accordingly.

So if you don't want this, you can delete this.

Now what we are going to do is I'm going to show you how contact constraint is different

from that.

So contact constraint as the name suggests is going to have a particular contact between

both the two surfaces.

So just like I showed you with the offset constraint, we can give a particular value of zero between

two features and then coincide them.

But in this case it is going to be a fixed feature and you cannot separate both the parts.

So for example I'm going to just make this and this contact and try to update it.

So now there is no chance that I can modify or make adjustment to the value that how much

there should be a distance between both the surfaces or both the parts.

So that is one drawback of contact surface over offset.

But it's all over the application.

If you are 100% sure that both the parts are definitely going to be fixed to each other,

no matter what, then definitely contact is preferred offset but offset also serve the same

purpose.

It's all up to the user.

I'm going to delete the contact again.

So now I'm going to show you how angle works.

So for example, in this case it's going to be hard for me to explain how angle will work.

But let me just give you an example.

Let's say your part is something like this and you just want to align the part to itself.

So I'm going to delete the coincide feature.

I just wanted to make sure that these two surfaces are parallel to each other.

So I'm going to click on the angle constraint.

I'm going to click on this surface with respect to the top surface.

You can see it shows an angle right here.

I want an angle of 180 degree because that is going to be the parallel constraint between

two of them.

You can see that there we go.

We have a perfect flat parallel constraint between both the surfaces.

So if I want to move this part, which is part two, and if I make any changes to it, and

I click update, it's always going to be 180 degrees with respect to wherever it is in

the space.

And you can always do this according to the parts and according to the drawing as well.

So I'm going to go back.

The shortcut for going back is Ctrl Z.

Press Ctrl Z.

So I'm back here.

Now I can show you what is fixed together means if I want to.

So for example, if I want to fix both these parts together, I'm going to click on fix

together.

I want to fix this with this particular part.

And then I click OK.

So as we have already specified that part one is already fixed, it means that any change

that I would like, I would like or try to make within the assembly now is going to be

irreversible.

So what does that mean is if I want to move this part anywhere in the space from its

actual position.

Let's say.

Let me give you a proper example first.

Let's say that I'm going to coincide them first.

That's going to be easier for me to explain you update.

And now if I go and apply fix together, you see.

It shows one constraint of that these two are fixed with respect to each other.

So whenever I'm going to update it's going to come back to that particular position where

you have fixed both the parts at.

It's not just because of the coincide for sure, like it is going to be if I don't have

fixed together as well, I can do the same thing.

If I just want to fix together can be used as a good feature if you just want to avoid

any kind of extra constraint and if you're not perfectly sure that whether that part is

moving inside the assembly or not.

So you can simply fix both of the parts together.

It's going to be easier for you but if you can cry always try to work on with constraints

like contact or offset.

Now moving on to quick constraint.

So as I told you that you can also make another constraint I'm going to delete coincide right

now.

And I'm just going to randomly move this part to just to explain how the snap feature

works.

So you need to drag out this particular part as well.

So what you can do is you can always always use snap feature.

So snap is basically temporary constraints that you can apply.

You have quick constraint and smart move.

I just use snap normal snap.

So what you can do is you can click on this axis and click on this axis and it automatically

adjust it for you.

But this is not going to be fixed.

So for example there is no going to be updation that you change the part or you change the

dimension.

Although I have snapped them together.

So if I move this part part two in space it is not going to ask me to for any updation.

So this position now is going to be a final position.

Whereas if you use hard constraints which are like the actual constraints it help you

to make the rigid constraints between two parts or more than two parts within an assembly

because of which you can always always make sure that both the parts are aligned with respect

to each other in whatever way you choose to.

So that is the main difference that these are soft constraints and they don't have any

specific dimensions associated with within the two parts.

And hence if you buy mistake move any part slightly up or down there is no probability

of the part coming back to the actual position.

Until unless you try to do controls Z every time if you prefer to.

I will only recommend you to use snap before applying actual constraints because it will

make your job a bit easier to make constraints between two parts.

For example what I mean to say is let's say I have this particular part aligned the other

way but I want to join this particular surface with this the same way I showed you in the

beginning.

So what can I do is I am going to snap them before first time snap both of these and now

they are asking me an option whether to choose a direction I am going to click on this and

you see it flip the direction as well and I click anywhere else.

So what so now is easier for me to just simply apply any offset constraint as well as any

contact surface but before that just to make sure that I don't lose my alignment I am

going to insert coincide constraint and the same thing.

So now it's not showing me an update because it was already coincide because we use snap

and then I can simply go to offset, come offset the top surface and I am going to say zero

and I am going to click update and there we go.

We have our part assembly if we want to have particular distance of 50 let's say update

there we go.

So this is how you can actually make an assembly using constraints in Katika V5.

So this is it for the video today.

Thanks for watching and please don't forget to subscribe like and share the video and

channel.

If you have any doubt please let me know in the comment section.

I would love to respond it as soon as possible and if you also have any recommendation or

if you want me to put video on a particular content I would love to do so.

So please hit a message in comment section or also I have posted my contact information

under the description.

So please do not hesitate to call or contact through my phone number or email ID.

Thanks for watching once again.